Which DDR RAM to buy? - PC2100 or PC2700 DDR RAM, 266mhz ...This is 133MHz for PC2100 and 166MHz for PC2700 DDR RAM. . processors run on a base FSB of 166MHz (DDR 333MHz), so they will transfer data across the system bus . 2GB DDR3 1066MHz PC3-8500 240PIN Desktop Memory DIMM .http://www.ddrsdrammemory.com/which_ddr_ram.html

KOMPUTERBAY 2GB ( 2 X 1GB ) DDR DIMM (184 PIN) 333Mhz ...While at first glance, it may be in your best interest to shop around. Know that when you purchase RAM from Komputerbay, you're getting Grade-A brand name .http://www.amazon.com/KOMPUTERBAY-333Mhz-DDR333-PC2700-DESKTOP/dp/B003CH8NXY